William e



(NoModel.) l W. R. CAMPBELL 82; W. J. CHAMBERS.

' GRN P LANTER CHECK ROWER.

No. 263,854. Patented Sept. 5,' 1882.

N gli w/lllll/llllll/Zviii/Illianar/"' I 'MMMHWHEW UNITED 'STATES PATENT OFFICE.

.WILLIAM R. CAMPBELL AND WILLIAM J. CHAMBERS, F KIRKWOOD, ILL.

CORN-PLANTER CHECK-ROWER.

SPECIFICATION forming part of Letters lfatent No. 263,854, dated September 5, 1882.

Appncationniea Marenaazisea. evo moaei.) i

To all whom it may concern:

Be it known that we, VILLIAM R. CAMPBELL and WILLIAM J. (humanities,A citizens of the United States, residing near Kirkwood, in the county of Warren 'and State of Illinois, have invented certain new and useful Improvements `in Corn -Planter Check Bowers; and we do Ihereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it Y appertains to make and use'the same.

Our present invention relates to improve-` and claimed.

In the accompanying drawings, which illustrate our invention and a device embodying the same, and form a part of this specification, Figure l is a top plan; Fig. 2, an elevation partly in section in the lineas oo in Fig. l; Fig. 3, a side elevation, the parts in different relative positions from that shown at Figs.

l and 2.

Referring to the drawings by letterswthe same letter indicating the same part in the different figures, and the same letter used to indicate any particular part in ouraforesaid patent being also used herein to indicate the same part-letter A represents the supportingbar; B, the rock-shaft; C, the base-plate, with slots o c o and enlarged end C', D, oscillating head, with arms d d d", arm ol with holes from which rod d extends to seed slide-bar; E Ef, arms hinged to arms ol d', respectively, and having lugs i i hinged to their respective ends and held by nuts f, which nuts have lugsf' extending downward into the slots c. G is a tappet-bar, which has a reciprocating en dwise movement from the rock-shaft B, arm b, and connecting-rod Land is held in line by a lug, g', which moves in slot o. J is a spring adapted to return the shaft B to its original position after each movement from the tappets acting on the forked levers on each end of said shaft.

The foregoing part-s described by letter arc constructed substantially the same and operate in combination in same manner as shown and fully described in our aforesaid patent, and need not be fully described here.

In our present device we have preferred to jecting downwardly from its front end, and is l somewhat concave on its under side from the catch l to the fulcrum l, and is formed at its rear end and under side so as to permit ot' it oscillating to a limited -extent in a vertical plane on the fulcrum l. The upper side of the bar L is formed with a cam-face, l, extending from near the fulcrum lforward and slightly lupward, and with a cam-face, l", extending `ufrorn near said fulcrum rearward anti slightly upward, as shown at Figs. 2 and 3. The camface l is preferably terminated atits forward end by a shoulder, '1n/J N is a slotin the wall G", through which the bars G and L pass.

As shown at Figs. Zand 3, the bar G, moved by a tappet on the tappet-wire, has acted on the lug i and moved the parts into the relative positions shown at said figures, and the bar Gr has been retracted by the springJ into the position shown at same figures and ready for action on the lug i at. its next forward movement.` ln moving backward by the action of the spring, as last described, the cam-face l comes in contact with the upper side, a, of the slot N, and the forward end of the har L is thereby forced downward, so that the catch l is brought down in front of the lug t', as shown at Fig. 2, in which position it holds the bars E E and head D firmly in position, and thereby prevents the seed-slide from being moved by any accidental movement or inclined position of the planter during the intervals while the tappets are not engaged with the lever on shaft B. The action of the lock-bar L on the Alug z" at the next throw of the bar Gis the IOO e incassa same as its action with reference to the lug t', and need not be described here. As the bar G and lock-bar are thrust forward by the` action of the tappets on the forked lever the cam-face Z will come in contact with the upper side of the slot N, and the forward end of the bar L will he thereby elevated, as shown at Fig. 3, to permit the lugs it" to pass beneath the catch l.

It will be evident that any ixedwiper may be used instead of the upper side of the slot N to oscillate the bar L. The bar L has to a limited extent the same function in preventing the lugs it" swinging over as :loes the spring-bar H in our aforesaid patent; but we prefer usingl a button, I), attached to each arm E E', so as to extend over the hinged end of its connected lug t' or i ina manner to permit the lug to swing the extent required, but no farther. rIhe shoulder m on the bar L will come in Contact with the wall of the case C, `as shown at Fig. 2, and thus act as a stop to limit the movement or throw ot' the bar G by the spring J.

1. In a corn-planter check-rower, the combination, with an oscillating head, D, having armsl EE hinged thereto, adapted to be actuated by a sliding bar, G, of a bar, L, hinged to said bar G and adapted to be rocked or swung on its fulcrum, whereby a catch on its end may engage and lock the parts, substantially as and for the purpose specified.

2. In a corn-planter checlr-rower, the coinbination, with an oscillating head, D, having arms E E hinged thereto, adapted to be actuated by a sliding bar, G, of a bar, L, hinged to said bar G and having cam-faces l Z", which slide in contact with the side a of a slot,sN, to oscillate said bar L for the purpose of engaging and disengaging a catch, l', on its end with the arms E E alternately, substantially as and for the purpose specitied.

3. In a corn-planter check-ro\ver,the oombination, with the head I), having arms E E hinged thereto, which arms E E have lugs t' if,

respectively hinged thereto, and a sliding bar,

G, of an oscillating bar, L, hinged to the bar G and provided with cam-faces l Z and a catch, l', and adapted to be oscillated by a tiXed part, n, substantially as and for the purpose specified.

4. In combination with the head D, arms E E', swinging lugs t' i', and sliding tappetfbar G, adapted to impart movement alternately to the lugs t' i', the oscillating bar L, hinged to the bar G and adapted to be operated and to lock the parts, substantially as and for the purpose specified.

5. In combination with the head D, arms E E, swinging lugst' t', and sliding tappct-bar G, rock-shaft B and connecting-rod I, adapted to impart movement alternately to the lugs it, the oscillating bar L, hinged to the bar G and adapted to be operated and lock the parts, substantially as and for the purpose specified.

6. In combination with the head D, bars E E', lugs t' ,-and sliding bar G, the oscillating bar L, having catch l and cam-faces l l, and shoulder m', adapted to engage with the wall C and limit the throw ot' the slide G in one direction, substantially as and for the purpose speoied.

7. In combination with the sliding tappetbar G, swinginglugs t' i', and sliding arms E E', the guard-buttons P, adapted to limit the extent of swinging movement otf the lugs t' i', substantially as and for the purpose specified.

In testimony whereof we affix our signatures in presence of two witnesses.

WILLIAM It. CAMPBELL. WILLIAM J. CHAMBERS.

Vitnesses:

ALEXANDER S. UMBERGER, JOHN J. SEERLEY. 

